Phylum:Anamorphic fungi >> Class: Anamorphic fungi >>  Order: Anamorphic fungi 
   
 
 BCRC Number NO BCRC Number!  
   
 Scientific Name: Podosporium elongatum
 
   
   
 Author:

Podosporium elongatum Chen & Tzean, Mycol. Res. 97: 637-640. 1993.

   
 
 
 
 
 Description: Colonies effuse, grey. Synnemata erect, straight, simple or branched, dark brown to black, solitary or in groups of 2-4, scattered, 508-1102 μm long, 134-196 μm wide at the apical, fertile capitate region, 48-128 μm wide at the base of the stalk. Mycelium mostly immersed, composed of branched, septate, smooth to roughened or rugose, pale brown to brown hyphae. Conidiophores macronematous, synnematous, septate, branched, smooth to rugose. Conidiogenous cells monotretic, clavate, integrated, terminal, determinate, occasionally percurrently proliferating, 5.6-19.1 μm long, 3.5-5.2 μm wide, rugose, pale brown, with scar and conspicuous pore at the apex. Conidia dry, solitary, acrogenous, obclavate or elongate-obclavate, straight to slightly curved, 8-21 septate, slightly constricted at the septa, 62.0-188.1 × 6.2-10.3 μm, rugose, brown, paler toward the apex, base with a depressed hi-lum, 1.2-2.4 μm wide.
 
 
 
 
 
 Specimens:

Taiwan, Hsinchu, Kunghsi, on a dead culm of bamboo, 15 Oct. 1990, holotype PPH18 (on natural substrate) and isotype IMI 353972.

 
 
 
 Habitat: on a dead culm of bamboo.
 
 
 
 Distribution:

Taiwan.

 
 
 
 References:

Chen, JL and Tzean, SS. 1993.

   
   
   
 Provided:

S. S. Tzean and J. L. Chen

 
 
 Note: Morphologically and ecologically, P. elongatum is closely related to P. nilgirense. They share a common habitat and substratum, bamboo, and are also similar in general mor-phology and the development of synnematous conidiomata, and conidial ontogeny. However, P. elongatum differs markedly from P. nilgirense in having slender, elongate, multiseptate, obclavate conidia (62.0-188.1 × 6.2-10.3 μm, 8-21 septa); in contrast conidia of the latter species are broader, shorter and have less septa (32-50 × 7-9 μm, 4-6 septa). P. elongatum also can be readily distinguished from P. rigidum and P. duartei by morphology or the de-velopment of synnemata and conidia (P. rigidum, 40-70 × 10-14 μm; P. duartei, 50-145 × 12.5-18 μm, 3-6 septa).